Improvement in dampers



J. M. FREAR.

Damper.

Paented .lan. 31, 1871.

N-PEIERS. FHOTO-LITHDGRAFHER, WASHiNGTON. D. C.

. tdci-hal ytstr JAMES M. BREAK, 0F PITTSTOWN, APENNSYIANIA.

" Letters Patent No. 111,336, dated anuary $1,` l1871.

.-,IMPROVEMENT IN DAMPERS.

The Schedule referred to in these Letters Patent' andV mak-ing parl: of the sme.

accompanying drawing forming part of this specification.

The object of this invention is to obtain convenient and easy access to the bottoni fines of stoves and ranges for the purpose of cleaning the same, and also to' create an under draught-for carrying off the ashes and dust which rises when raking or shaking the gmte; and

It consists in an adjustable damper, suspended on hearings, with a handle passing through the side of the stove for operating the same, and also ina plate for adjusting the damper, as will be hereinafter more fully described.

1n the accompanying drawing- Figure 1 represents an outside view; showing the handle of the damper andthe adjusting device.

Figure 2 is a vertical sect-ion of iig. 3, on the line Figure 3 is a cross-section, looking in the direction indicated by the arrow from the line 'y y of iig. 1, showing the side of the damper and the mannerin which it is supported.V

Similar letters of reference indicate corresponding parts.

' A is the flue-plate. I `B is the side of the stove or range.

C isl themdamper.

D is the handle, which projects through the side B and drops down, as seen in fig. 3.

E is a box, for supporting one end of the damper. The other end is supported by the side B, as seen in" the saine figure.

` F represents the device adj usted.

This is a quadrant-shapedplate, attached to the side B by the pivot-screw or rivet, as seen at'G.

This adjust-ing plate F has projections, Hand I, between which the handle D may be held, so as Vto support thodamper at an angle of about forty-live degrees, or partly open.

When the damper is fully open, or in an upright position, it is held in that position by the projection H and when entirely closed it is held tightly to its place by the projectionl I.

By nieansof this damper free and ready access is obtained to the lower flue of the stove or range, and a strong draught is produced for the purposes named. Having thus described myinvent-ion,

l claim as new and desire to secure by Letters 1. The plate l `,by means of which the damper may be adjusted, substantially as described, for the purposes set forth. y n y 2. 1n a stove or range, the combination of the damper C and adjusting plate F, substantially as and for the purposes described.

JAMES M: FRE-Ali.

lVitne'sses:

J. J VINCENT, PETER Rumen.

by which thedamper is' 

